<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <script src="https://unpkg.com/vue/dist/vue.js"></script>
    </head>
    <body>
    <div id="app">
  <span v-bind:title="message">
    鼠标悬停几秒钟查看此处动态绑定的提示信息！
  </span>
</div>
    </body>
    <script>
 var app = new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue!新消息'+new Date()
  }
})
    </script>
</html>